Most roadside assistance programs use the same tow truck vendors. They are going to take about the same amount of time to get to you. If you are on I-70 in the middle of Utah, it is going to be a long time before they get there. Or at Big Bend National Park where the nearest tow truck is 140 miles away.
The keys are getting a plan which will tow your RV/ vehicle. If you are going to be visiting out of the way national parks / campgrounds - check for mileage limits.
Most RA plans are written for coverage in metropolitan areas.
Personally I've found that I must go with the top level or premium plan to get good coverage.
I prefer a company like Coach Net which has operators trained in RV needs, and RV technicians available to talk to about your problem.
Full-Time 2014 - ????
โNot all who wander are lost.โ
"You were supposed to turn back at the last street."
2012 Ram 2500 Mega Cab
2014 Flagstaff 832IKBS TT